An online survey was fielded between April 15 and May 25, 2015. Average survey length was 15 minutes.


Respondents include 145 architects, 31 engineers (civil and structural only) and 131 contractors, all from the US. The respondents had to have BIM experience and be employed by firms with the following minimum sizes:

  • Architects: $5 million or more in 2014 revenue
  • Engineers: $10 million or more in 2014 revenue
  • Contractors: $50 million or more in overall project construction value in 2014

The following charts show:

  • The project experience of the respondent firms
  • The BIM expertise level (self-described) of the respondents
  • The regional diversity of the respondents